What Does This MRI Report Mean?

I need help understanding my MRI results. L1-L2 The disc is unremarkable. Moderate facet degenerative disease L2-L3 Mild concentric stenosis due to bulging disc, mild bilateral facet degenerative disease and moderate ligamentum flavum thickening. Mild/moderate bilateral neural foraminal narrowing. L3-L4 Moderate/severe concentric stenosis due to broad-based disc protrusion, moderate bilateral facet degenerative disease and moderate ligamentum flavum thickening. Greater subarticular recess stenosis may more focally effect the the traversing L4 roots. Mild/moderate bilateral neural foraminal narrowing. L4-L5 severe concentric stenosis due to broad-based disc extrusion, severe bilateral facet degenerative disease and severe ligamentum flavum thickenting. Moderate right and severe left sided neural foraminal narrowing. Moderate right and severe left-sided neural foraminal narrowing. Foraminal extension of disc osteophyte complex may affect the exiting nerve roots, more on the left. L5-S1 Severe concentric stenosis due to broad-based disc protrusion, severe bilateral facet degenerative disease and moderate ligamentum flavum thickening. Mild right and moderate left-sided neural foraminal narrowing. Left foraminal disc osterophyte complex may contact the exiting left L5 nerve root. Impression: 1. Sever lower lumbar central canal stenosis worse at L4-L5 on the left more than L5-S1 Moderate to severe stenosis at L3-L4 2. Severe lower lumbar facet degenerative disease 3. Moderate loss of disc space height. Degenerative listhesis. Severe facet degenerative disease